I've been demineralising you've been demineralising he's been demineralising we've been demineralising you've been demineralising they've been demineralising
I'd been demineralising you'd been demineralising he'd been demineralising we'd been demineralising you'd been demineralising they'd been demineralising
I'll be demineralising you'll be demineralising he'll be demineralising we'll be demineralising you'll be demineralising they'll be demineralising
Future perfect
I'll have demineralised you'll have demineralised he'll have demineralised we'll have demineralised you'll have demineralised they'll have demineralised
Future perfect continuous
I'll have been demineralising you'll have been demineralising he'll have been demineralising we'll have been demineralising you'll have been demineralising they'll have been demineralising
I'd be demineralising you'd be demineralising he'd be demineralising we'd be demineralising you'd be demineralising they'd be demineralising
Past
I'd have demineralised you'd have demineralised he'd have demineralised we'd have demineralised you'd have demineralised they'd have demineralised
Past continuous
I'd have been demineralising you'd have been demineralising he'd have been demineralising we'd have been demineralising you'd have been demineralising they'd have been demineralising